FiiO M15SFrom real comments

Verdict distilled from 27 mentions across 13 aspects in comments under product review videos.

Positive sentiment48%
PROS 48%
CONS 52%

Rank based on 27 mentions across 13 aspects

View the verdict as

Buy this if...

  • You want strong power and refined sound driving planar or high-impedance headphones
  • You value tunable digital filters like 2nd Harmonic to shape tone
  • You're upgrading from an older DAP or dongle and want a clear sound-quality step up

What users love

Skip this if...

  • You expect current Android and long-term app/OS support
  • You're worried about overheating or possible hardware failures
  • You're on a tight budget, since reviewers call it steeply priced for its dated internals

What users complain about

Compare in seconds

Based on user comments

Best choice
1Mid
Marantz ND8006
Excellent CD playback qualityAdjustable sound settings for tuningLong-term reliabilityNo SACD supportPerceived poor value by one userSlow streaming performance
Marantz ND8006
Excellent CD playback quality
Adjustable sound settings for tuning
Long-term reliability
No SACD support
Perceived poor value by one user
Slow streaming performance
2Premium
Sony NW-WM1A
Distraction-free listening experienceSuperior sound quality vs rivalsGood headphone/IEM pairing optionsEU volume/sound cap restrictionsNo wireless/Android limits convenienceHigh price point
Sony NW-WM1A
Distraction-free listening experience
Superior sound quality vs rivals
Good headphone/IEM pairing options
EU volume/sound cap restrictions
No wireless/Android limits convenience
High price point
3Mid
SMSL PL200
Reliable top-loading mechanism
SMSL PL200
Reliable top-loading mechanism
4
Akai GX-266II
Attractive DesignAuto-Reverse PlaybackBeautiful Sound QualityLeft Channel Warm-Up Delay
Akai GX-266II
Attractive Design
Auto-Reverse Playback
Beautiful Sound Quality
Left Channel Warm-Up Delay
5Mid
Pioneer RT-707
Extremely durable buildExcellent sound qualityEasy tape threadingCounter belt failure is commonAging capacitors and transistors cause noiseRear-mounted output controls
Pioneer RT-707
Extremely durable build
Excellent sound quality
Easy tape threading
Counter belt failure is common
Aging capacitors and transistors cause noise
Rear-mounted output controls
6Premium
Sony NW-WM1ZM2
Premium Build QualityStrong Predecessor Track RecordLong-Term DurabilitySkepticism Over Gold/Material Marketing ClaimsVery High PriceUncertain Volume Cap and Storage Features
Sony NW-WM1ZM2
Premium Build Quality
Strong Predecessor Track Record
Long-Term Durability
Skepticism Over Gold/Material Marketing Claims
Very High Price
Uncertain Volume Cap and Storage Features
7Premium
FiiO M17
Powerful amplificationBalanced, neutral sound qualityAcceptable size for the power deliveredVery large and heavyHeat during useHigh price
FiiO M17
Powerful amplification
Balanced, neutral sound quality
Acceptable size for the power delivered
Very large and heavy
Heat during use
High price
8Mid
Marantz CD6007
Clear, detailed soundESS DAC still sounds goodUSB FLAC/WAV playbackUndisclosed DAC chip swapCheaper build vs 40n seriesDesign not for everyone
Marantz CD6007
Clear, detailed sound
ESS DAC still sounds good
USB FLAC/WAV playback
Undisclosed DAC chip swap
Cheaper build vs 40n series
Design not for everyone
9Premium
Yamaha GT-5000
Rich, Balanced SoundAttractive DesignPremium Build QualityControversial Straight Tonearm GeometryHigh PriceFinish Not Metal
Yamaha GT-5000
Rich, Balanced Sound
Attractive Design
Premium Build Quality
Controversial Straight Tonearm Geometry
High Price
Finish Not Metal
Best value
10Mid
Audio-Technica AT-VM95ML
Strong value for moneyConvenient headshell-mounted optionExcellent tracking on older vinylBright red stylus color criticizedQuestionable review test conditions
Audio-Technica AT-VM95ML
Strong value for money
Convenient headshell-mounted option
Excellent tracking on older vinyl
Bright red stylus color criticized
Questionable review test conditions
You are here
31Premium
FiiO M15S
Powerful, refined sound qualityHigh power output for demanding headphonesExtensive sound-tuning filtersOutdated Android 10 operating systemHigh price for the hardware offeredOverheating concerns
FiiO M15S
Powerful, refined sound quality
High power output for demanding headphones
Extensive sound-tuning filters
Outdated Android 10 operating system
High price for the hardware offered
Overheating concerns

Who wins on what

Ranked by what users actually praise

Overall Impression

Sound quality and power output are the M15S's strongest selling points. Multiple owners describe the M15S as a clear upgrade in clarity and drive, pairing it successfully with power-hungry gear like the HE1000SE, HD800s, Arya Stealth, and planar headphones. One user found adding an amp still improved things further, calling the combo 'crazy' good, while another called it a standout compared to cheaper dongles and older DAPs they'd previously owned.

Tuning options like filters and 2nd Harmonic let users shape the sound to their gear. One detailed comment describes experimenting with filter settings and gain levels, finding that switching from Apodizing to adding 2nd Harmonic and raising volume made the sound 'sing' with more clarity and emotion. Another commenter recommends enabling 2nd Harmonic specifically to tame brighter-sounding headphones or IEMs, suggesting these tuning tools are a genuinely useful, discussed feature among owners.

An aging Android 10 platform and reliability worries are the recurring frustrations. Several commenters call it unacceptable that a device priced near $1000-1400 still ships with Android 10 and an older Snapdragon chip, unfavorably comparing it to newer Hiby releases with modern OS versions. Separately, one user reports the AUX ports stopped outputting audio after a few weeks with an unhelpful FiiO repair response, another notes no software updates on their unit, and others mention heating concerns and slow library scanning with third-party apps.

Outdated / Not-accurate data?